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LIBPLOT3(3)			    BRL-CAD			   LIBPLOT3(3)

       libplot3	- graphics interface subroutines

       pl_space(FILE *fp , int x0 , y0 , x1 , y1,
		pl_3space ( fp , x0 , y0 , z0 ,	x1 , y1	, z1 ) FILE*fp,
		int x0 , y0 , z0 , x1 ,	y1 , z1, pl_erase ( fp ) FILE*fp);

       pl_color(FILE *fp , int r , g , b, pl_linmod ( fp , s ) FILE*fp,
		char *s	);

       pl_label(FILE *fp , char	*s );

       pl_line(FILE *fp	, int x1 , y1 ,	x2 , y2,
	       pl_3line	( fp , x1 , y1 , z1 , x2 , y2 ,	z2 ) FILE*fp,
	       int x1 ,	y1 , z1	, x2 , y2 , z2,
	       pl_move ( fp , x	, y ) FILE*fp);

	       int x, y;

       pl_3move(FILE *fp , int x , y , z, pl_cont ( fp , x , y ) FILE*fp,
		int x ,	y);

       pl_3cont(FILE *fp , int x , y , z, pl_point ( fp	, x , y	) FILE*fp,
		int x ,	y);

       pl_3point(FILE *fp , int	x , y ,	z,
		 pl_box	( fp , x1 , y1 , x2 , y2 ) FILE*fp,
		 int x1	, y1 , x2 , y2);

       pl_3box(	fp, x1,	y1, z1,	x2, y2,	z2 )

       FILE *fp;
       int x1, y1, z1, x2, y2, z2;

       pl_circle(FILE *fp , int	x , y ,	r,
		 pl_arc	( fp , x , y , x0 , y0 , x1 , y1 ) FILE*fp,
		 int x , y , x0	, y0 , x1 , y1);

       These subroutines generate graphic output commands for processing with
       the plot(1) plotting filters. They are slightly more general than those
       in libplot as these take	a file pointer.	They also include the BRL 3-D
       extensions to the plot intermediate code.

       Pl_space	or pl_3space must be used before any of	the graphic primitives
       to declare the amount of	space necessary. See plot3(5).

       Pl_box or pl_3box draws a box between the two given opposite points.
       The ''pen'' will	be left	at the second point.

       Pl_circle draws a circle	of radius r with center	at the point (x, y).
       Note that circle	and arc	cannot be transformed in three space if	one is
       using a filter to do that.

       Pl_arc draws an arc of a	circle with center at the point	(x, y) between
       the points (x0, y0) and (x1, y1).

       String arguments	to pl_label and	pl_linmod are terminated by nulls and
       do not contain new-lines.

       There are also 2-D and 3_D double-precision versions, with arguments
       identical to their counterparts above. The naming conventions are to
       change the prefix to "pd"; examples are thus pd_point and pd_3point.
       Vector versions for 3_D (also double-precision) are prefixed "pdv", as
       in pdv_3point.

       See plot3(5) and	plot(5)	for a description of the effect	of the
       remaining functions.

       /usr/brlcad/lib/libplot3.a produces output for plot(1G) filters

       In order	to compile a program containing	these functions	in file.c it
       is necessary to use ``cc	file.c -lplot3''.

       Color specification and three-dimensional primitives are	BRL extensions
       to the "unix plot" language that	are not	generally found	on other

       plot(1),	pl-fb(1), plot3(5), plot(5)

       BRL-CAD Team

       This software is	Copyright (c) 1989-2013	by the United States
       Government as represented by U.S. Army Research Laboratory.

       Reports of bugs or problems should be submitted via electronic mail to

BRL-CAD				  07/08/2017			   LIBPLOT3(3)


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